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1.新能源电力系统全国重点实验室(华北电力大学),北京市102206
2.中国华能集团有限公司海南分公司,海南省海口市 570100
Received:11 June 2024,
Revised:2024-09-26,
Published Online:15 January 2025,
Published:10 March 2025
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陈泽宇,陈艳波,张智等.阻塞管理过程溯源及其线路动态增容效益计算[J].电力系统自动化,2025,49(5):187-199.
CHEN Zeyu,CHEN Yanbo,ZHANG Zhi,et al.Traceback of Congestion Management Process and Its Benefit Calculation to Dynamic Line Rating[J].Automation of Electric Power Systems,2025,49(5):187-199.
陈泽宇,陈艳波,张智等.阻塞管理过程溯源及其线路动态增容效益计算[J].电力系统自动化,2025,49(5):187-199. DOI: 10.7500/AEPS20240611007.
CHEN Zeyu,CHEN Yanbo,ZHANG Zhi,et al.Traceback of Congestion Management Process and Its Benefit Calculation to Dynamic Line Rating[J].Automation of Electric Power Systems,2025,49(5):187-199. DOI: 10.7500/AEPS20240611007.
线路动态增容(DLR)作为一种缓解间歇性网络阻塞的有效技术,能够提升电力系统的运行效益。然而,在安全约束经济调度的求解过程中,阻塞管理的详细过程不易获取,市场运营机构往往难以准确分析DLR的经济效益以及制定兼顾经济性和安全性的DLR计划。为此,针对单支路阻塞情况,提出了一种基于成因量化分析的阻塞管理过程溯源方法。通过全流程地拆分和解析安全约束经济调度下的阻塞管理过程,合理构建了DLR计划、阻塞管理、节点电价三者之间的联动关系;在此基础上,进一步提出了考虑阻塞管理过程溯源的DLR效益计算方法。最后,通过算例分析,验证了所提溯源方法的有效性以及所提DLR效益计算方法的可行性。
Dynamic line rating (DLR)
as an effective technique to alleviate the intermittent network congestion
can significantly increase the operation benefits of power systems. However
since congestion management is inherently embedded within the solution process of security constrained economic dispatch (SCED)
the intricate details of this process are not easy to obtain. Consequently
it is difficult for market operators to accurately analyze the economic benefits of DLR and formulate DLR plans combining economic efficiency with safety. To address this issue
this paper proposes a traceback method for congestion management process with quantitative analysis of contributing factors for the single-branch congestion scenarios. By comprehensively dissecting and analyzing the congestion management process within the framework of SCED
a linkage relationship among DLR plans
congestion management
and locational marginal price is established. On this basis
a benefit calculation method of DLR that incorporates the traceback of congestion management process is further proposed. Finally
through case analysis
the effectiveness of the proposed traceback method and the feasibility of the benefit calculation method of DLR are validated.
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